"OM effin G!"
Jimmy Fallon and will.i.am performed as their teenage-girl alter-egos (Sara and mir.i.am) for a totally amazing "Ew!" segment on "The Tonight Show" on Monday.
Wearing dresses, wigs and braces, the pair raps about topics that matter most to young girls, including bread bowls, duck lips, FaceTime and "impleggies" (butt implants.)
Sara's "annoying" stepdad Gary and Questlove even made cameos in the video!
Fallon has recruited celebrities including Zac Efron and Seth Rogen, Will Ferrell, the Jonas Brothers, Lindsay Lohan, Michelle Obama, Michael Strahan, Taylor Swift and Channing Tatum to play teens in his past "Ew!" segments.
Check out the video above to see how the Black Eyed Peas frontman measures up!
The song is available for digital download on iTunes to raise money for the SeriousFun Children's Network and the i.am.angel Foundation.